Add buy cover with metadata method

Merge pull request #250 from NexusMutual/release-candidate

Release v1.6.0

Increase swap operator limits

Merge pull request #213 from NexusMutual/release-candidate

Increase swap operator limits

Add VotePower contract

The VotePower contract exposes an ERC20 interface and returns the amount of tokens held by a member, including their delegations. It is implemented according to the rules for Special Resolutions of Nexus Mutual Ltd. This implementation can only be used against a snapshot as it doesn't check lock times, hence doesn't prevent double voting if used on-chain.

Add a single-use function to transfer funds to the Community Fund

This release adds a single-use function transferToCommunityFund to the SwapOperator contract meant to implement the gov proposal no 160

Emergency Pause & Upgradability Improvements

This release covers the following changes:

• Redesign of the contract pause mechanism.
• Refactor of contract upgrade functionality.
• Minor refactoring and code clean-up.

Full specifications and the audit report can be found here.

The upgrade was done via governance proposals 154 & 155.